Finding the Fourth Proportional to 225,493.12, 311,389.68 and 168,806.08
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Solution
The fourth proportional to 225,493.12, 311,389.68 and 168,806.08 is: 233,108.98
Step by Step Solution
- Step 1: Write the proportion equation
225,493.12 : 311,389.68 = 168,806.08 : x - Step 2: Convert to fraction form
225,493.12/311,389.68 = 168,806.08/x - Step 3: Cross multiply
225,493.12x = 311,389.68 × 168,806.08 - Step 4: Simplify right side
225,493.12x = 52,564,471,233.25 - Step 5: Solve for x
x = 52,564,471,233.25/225,493.12 - Step 6: Final answer
x = 233,108.98
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.